diff --git a/.github/ISSUE_TEMPLATE/bug.yaml b/.github/ISSUE_TEMPLATE/bug.yaml
index f8cb0dc..4d671d4 100644
--- a/.github/ISSUE_TEMPLATE/bug.yaml
+++ b/.github/ISSUE_TEMPLATE/bug.yaml
@@ -27,7 +27,7 @@ body:
     attributes:
       label: Reproducible Example
       description: >
-        Please provide a minimal reproducible example, using generic (`ohlcv.csv`) data where applicable which demonstrates the current behaviour. The code should be complete and not require any further adjustments.
+        Please provide a minimal reproducible example, using generic (`ohlcv.csv`) data where applicable which demonstrates the current behaviour. The code should be complete and not require any further adjustments. DO NOT provide: Incomplete code, unnecessarily long code, code which requires access to a broker/API, or code which uses additional functions/classes/libraries. In almost ALL cases the example should not exceed 50 lines.
       placeholder: >
         from lightweight_charts import Chart...
       render: python
diff --git a/lightweight_charts/abstract.py b/lightweight_charts/abstract.py
index 53bee1b..9a02499 100644
--- a/lightweight_charts/abstract.py
+++ b/lightweight_charts/abstract.py
@@ -233,7 +233,7 @@ class SeriesCommon(Pane):
         series = self._series_datetime_format(series, exclude_lowercase=self.name)
         if self.name in series.index:
             series.rename({self.name: 'value'}, inplace=True)
-        if self._last_bar and series['time'] != self._last_bar['time']:
+        if self._last_bar is not None and series['time'] != self._last_bar['time']:
             self.data.loc[self.data.index[-1]] = self._last_bar
             self.data = pd.concat([self.data, series.to_frame().T], ignore_index=True)
         self._last_bar = series
diff --git a/setup.py b/setup.py
index 53e2954..33720d3 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open('README.md', 'r', encoding='utf-8') as f:
 
 setup(
     name='lightweight_charts',
-    version='1.0.18.3',
+    version='1.0.18.5',
     packages=find_packages(),
     python_requires='>=3.8',
     install_requires=[